Question: For large samples, the sample sum (_x) has an approximately normal distribution. The mean of the sample sum is and the standard deviation is. The

For large samples, the sample sum (_x) has an approximately normal The mean of the sample sum is and the standard deviation is. The of savings per account for a savings and loan institution has a mean equal to $750 and a standard deviation equal to $25. For a sample of 50 such accounts, find the probability that the sum in the 50 accounts exceeds $38,000.

Step by Step Solution

★★★★★

3.46 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Px 38000 Pz x n Pz ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

519-M-S-S-S-I (399).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Find the probability that the electron in the hydrogen ground state will be found in the radial-distance range r = a 0 0.1a 0 .

Find the probability that a particle in a box L wide can be found between x=0 and x=L/n when it is in the n-th state.

A normal distribution has a standard deviation equal to 32. What is the mean of this normal distribution if the probability of scoring above x = 200 is .0228?

Data Analysis Assignment 3: Due Friday 11/06/15 by 11:59 PM Make sure you do the following: 1. Type your name on your paper (please read the formatting file to see how) 2. Under your name, put STAT...

For the follow questions please record your answers to at least three decimal places. The scores of students on the SAT college entrance examinations at a certain high school had a normal...

E Login for Azure X Enter | 2022 Ble X M BXOMAlune (34 X G WHERE clause X G There can be a X G the only reserve X GERS A5-F22.pdf X + V X -> C * PDF Viewer |...

In a survey of men aged20-29 in a certain country, the mean height is 73.4 inches with a standard deviation of 2.7 inches. Find the minimum height in the top 15% of heights. Use a TI-83, TI-83 plus,...

MT 272 Homework 5 HW: 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.10, 5.2.11, 5.2.12, 5.2.13 Due Mon Feb 22 5.2.4 The serum cholesterol levels of a population of 12-to 14-year-olds follow a normal distribution...

Question 1: An automaker has found that the lifetime of its batteries varies from car to car according to a normal distribution with mean = 48 months and standard deviation = 8.2 months. The company...

RANDOM SAMPLING PARAMETER AND STATISTICS Read and analyze each question and write your answer on the table above. 1. Which of the following is NOT a distinguishing feature of simple random sampling?...

Refer to Exercise, the Mile Down & Co. investment in CocoCorp bonds. In Exercise Mile Down & Co. owns vast amounts of corporate bonds. Suppose Mile Down buys $ 900,000 of CocoCorp bonds at face value...

(Multiple Choice) (1) True or false: (a) Gauss's law holds only for symmetric charge distributions. (b) The result that E = 0 inside a conductor can be derived from Gauss's law. (2) True or false:...

16 The formula to convert a temperature in degrees Centigrade (C) to degrees Fahrenheit (F) is F=Cx1.8+32 a Work out F when b i C=-15 Read what Marcus says. C=-20 Is Marcus correct? Explain your...

In the text, we said that people are key components of information systems. How can people cause an information system to fail? Provide specific examples to back up your claims.

For a t-curve with df = 17, use Table IV to find each t-value. a. t0.05 b. t0.025 c. t0.005

For a t-curve with df = 21, find each t-value, and illustrate your results graphically. a. The t-value having area 0.10 to its right b. t0.01 c. The t-value having area 0.025 to its left (A t-curve...

For a t-curve with df = 8, find each t-value, and illustrate your results graphically. a. The t-value having area 0.05 to its right b. t0.10 c. The t-value having area 0.01 to its left (A t-curve is...

View Policies Current Attempt in Progress Your brother has asked you for a loan and has promised to pay you $7,100 at the end of three years. If you normally invest to earn 8.50 percent per year, how...

Which of the following statements is correct? The overall size of the derivatives worldwide is bigger than the size of all listed stocks Derivatives can only be used to hedge risks Of all traded...

How much should you deposit at the end of each month into an investment account that pays 6% compounded monthly to have $4 million when you retire in 44 years? How much of the $4 million comes from...